Motor-plow.



c. x'ome. MOTOR PLOW.

APPUC ATIO N FILED OCT- I7, I9I3.

1,221,458. Patented A r. 3', 1917.

4 SHEETS-SHE?! I. I

MY'HESSES-f /nvenfor.r

' lrraaytv inairnn STATES PATENT OFFICE.

s ans nmzalcn Kenn, or Lmrzie, GERMANY, ASSIGNOR To m. BROCKMANN,

cnrsraiscnn FABRIK M. B. 1a., op Lmrzle-uu'rnrrzscn, GERMANY, A con- :eosarzon or GERMANY.

13.26% ,etdd.

fr'ye'nted certain new and useful Improvej'lments in Motor-Flows, of which the following is a specification.

' in the United States Patent No. 992211, ""a motor plow is described in which anchors Specification of Letters Patent.

pare rotated by means of chains in a frame ;%which is used for pulling the plow; the

anrhors enter into the ground in the working position, and the frame is driven forward along. these anchors which are retil pea-tedl y Withdrawn from. and driven into ground. y In nr-chines of this type, however, it, has

. been found that when pulling the anchors out of the ground in their end position earth is brought up with them which falls hack on to the heads of the anchors and the driving chain when the anchdrs move with the upper side of the chain, ,whereby these driving parts are soiled and subjected to rapid wear and tear.

A primary object of my invention is to provide a modificationof the motor plow of the type described such that the raising of earth is avoided as much as possible and ill iii)

that the anchors are inserted straight into and withdrawn straight from the ground, and, further, that the driving chains are protected from any earth which is never-.

theless carried up by the anchors and falls ofi therefrom when they move with the upper side of the chain. v I

These ends are in part attained by means of specially designed guides for the anchors such that the latter are inserted intoand withdrawn from the ground exactly vertically and that the distance between their dukes while in the ground remains constant, so that they, do not unnecessarily compress the ground. Further, the driving chains for the heads ofthe anchors are completely covered over eitherby belts, bands or the like, or by suitably shaping the guides for the anchors. I 5

Several illustrative embodiments of the invention are diagrammatically represented Moron-PLOW.

Patented Apr. 3, 1917.

Application filed {ictober 17, 1913. Serial No. 795,695.

chors, the front and rear rollers of the heads of the anchors being guided in separate guides of suitable design, such that the anchors are inserted into and withdrawn from the ground in av vertical or an approximately vertical position,

Fig. 2 is a top planview of a machine comprising guide-ways shown in Fig. 1, and

Fig. 3 is a cross-section taken through the guide-ways and through an anchor;

Fig. 4 is a sectional elevation showing a second form of guide-way and anchor; these anchors are also inserted intov the groimd vertically, and the distance between their flukes in the ground is kept constant; and

Fig. 5 is an elevation showing the mode of connection of the anchor head with the driving chain for the purpose of enabling those relative displacements to take place between the chain and the anchor heads which occur owing to thesag of the chain.

removed from it they are guided vertically or "approximately. vertically, and the disa tance apart of their flukes 9 measured in a horizontal plane remains constant, so that it is impossible for the ground to be compressed betweenthem. In Fig. 1 the numeral 1 designates the improved guide-wayforthe anti-friction rollers8' carried by the rear axles 8 of the heads of the anchors, 6 designates the improved guide-Way for the anti-friction rollers 'Zpcarried by the front axles 7 of the same, and 2 and 3 designate the slightly slanting portions of the guideway for the rear axles which respectively run into the curved portions 4 and 5 thereof, which insure that the anchors are gradually inserted into the ground in an approximately vertical position. Corresponding to the portions 2 and 3 of the guide-way 1, por- I 106. V ortions 2 and 3v in such manner that the ukes 9 of tions 6, 67- of the guide-way 6 for the front axles run relatively to the said the anchors move horizontally at the same anchors being guided up by them and falls distance apart, i. e. the distance a in Fig. 1, from the moment of their insertion into, until the moment of their withdrawal from, the ground, whereby the earth is prevented from being compressed. .Figs. 1 and 5 show another embodiment, in which the anchors are gradually introduced vertically and at equal distances apart into the round by means of two guideways. In this embodiment 6 designates the guide-way for both the front axles '7 and the rear axles 8 of the head of the anchor; this guide-way has the slightly curvedportions 6 running into the circular portions 5. The fiukes 9 are not attached rigidly to the heads of the anchors, but are mounted to swing about pivots 10. On each pivot 10 is keyed one end of an arm 11 whose other end is guided by means of an anti-friction roller 12 in a separate guide-way 13 which has curved portions 14 and slightly inclined portions 13' such that the fluke 9 is slowly and automatically inserted and withdrawn from the ground while the horizontal distance a be tween the points of two anchors in the ground is kept constant.

Fig. 5 shows how'the fixed pivot takes into the head of the anchor. As the chain sa it is never located exactly parallel with eit 1er guide-way, and consequently it must *be able to shift vertically relatively to the head of the anchor. Itcan do so owing to the fixed pivot 15 taking into a slot 16 in the head of the anchor.

The chain and the guide-ways can be covered over and thereby protected in various ways from any soil which, in spite of the vertically, is carried down; for example, fixed cheeks, flanges, side pieces, or belts rotating with the anchors, plates and the like may be provided.

In the embodiment shown in Fig. 6 the numeral 17 designates the guide'ways for the rollers 18 of the anchor axles 19. These axles are driven on both sides by the sprocket-wheels 20 by means of the chains I 21. These chains are completely covered by the fixed plates 22 and'shut off from the anchors 9, so that any soil falling off the fiukes falls on to the plates 22 and cannot fall on to the chains. For this purpose the shank of the anchor is reduced in breadth, 1'. e. constricted, in proximity to its head 23, up to which the plates 22 extend or nearly so. In order to obtain a perfectly tight joint between the plates 22 and the anchors I may arrange at the constriction in the shank a rotating belt or band 24 which closes the gap between the anchors and the plates 22. Also, in order to prevent the sprocket-wheels 20 becoming soiled it is preferable to protect them in addition by means of plates 25.

claim z- 4 1. In a car for driving a plow, the eombi chors having blade like flukes bers nation with a frame, sprocket-wheels mounted therein, an endlesschain meshing with the sprocket-wheels, and a plurality of anand driven by the chain, of endless guide-ways in the frame, a plurality of members guided in one of the guide-wa s, and a plurality of members lded in t e other guide-way, each anchor ing operatively connected with one of the former members and with one of the latter members, said members and guide ways cooperating to'constrain said flukes to remam substantially vertical when entering and leaving the soil.

2. In a car for driving a plow, the combination with a frame, sprocket-wheels mounted therein, an endless chain meshing with the sprocket-wheels, and a plurality of anchors having blade like flakes and driven by the chain, of two pairs of endless guideways in the frame, axle carried by each anchor, rollers carried by each front axle and guided in one pair of guide-ways, and rollers carried by each rear axle and guided in the other pair of guide-Way's, said rollers and guide ways cooperatin to constrain said flukes to remain substantially vertical when entering and leaving the soil.

I In a car for driving a plow, the .combination with v a frame, sprocket-wheels mounted therein, an endless chain meshi with the sprocket-wheels, and a plurality anchors having blade like flakes and driven b the chain, of endless uide-wavs in the frame, a plurality of memfiers guided in one of the guide-ways, and a plurality of members guided in the other guide-way, each anchor being operatively connected with one of the former members and with one of the latter members, each guide-way having two end portions of short radius running into a front axle and a rear curved portions of long radius connected by rectilinear portions such that from the time the-anchors bear on the ground until their withdrawal from the same, the horizontal distance between two flukes remains constant and theanchorsenter into and are withdrawn from the ground in an approximately vertical direction, said members and guide ways cooperating to constrain said flukes to remain substantially vertical when entering and leaving' the soil.

4.. In a car for driving a plow, the combination with a frame, sprocket-wheels mounted therein, an endless chain meshing with the sprocket-wheels, and a plurality of anchors having blade like flukes and driven by the chain, of endless guide-wavs in the frame, a plurality of members guided-in one of t e guide-ways, and a plurality of memguided in the other guide-way, each anchor being carried and guided by two of the former members and guided by one of the latter members, said members and guide mamas ways cooperating to constrain said fiukes to remain substantially vertical when entering and leaving the soil.

In a car for driving a plow, the combination with a frame, sprocket-wheels mounted therein, an endless chain. meshing with the sprocket-wheels, and a plurality of anchors .hav ing blade like flukes and driven by the chain, of endless guide-ways in the frame, a plurality of pairsot' axles each carrying an anchor guided in a pair of said guide-ways, and each anchor having an arm guided in another of said guide-ways.

6. In a car for driving a plow, the combination with a frame, sprocketwheels mount? ed therein, and an endless chain meshing with the sprocket-wheels, of endless guideways in'the frame, and a plurality of an ,chors having blade like flukes and each com prising a slotted head, afluke pivotally con nected thereto and an arm rigidly attached to the fluke; each head being guided in a pair. of said guideways, and each arm being' guided in another of said guide-ways,

and each pin of the chain taking into a slot' in a head, heads, arms and guide ways cooperating to const ain said tiukes to remain substantially vertical when entering and leaving the soil. I I

7 Ina car for driving a plow, the combination with a frame, sprocket-wheels mounted therein, an endless chain meshing with the sprocket-Wheels, and a plurality of anchors having blade like flukes and driven by the chain, oftwo pairsof endless guide-ways in the frame, a front axle and a rear axle carried by each anchor, rollers carried by each front axle and guided in'one pair of guide-ways, and rollers carried by each rear" axle and guided in the other pair of guide-' ways, one pair of guide-ways being located in the other pair, said members and guide ways cooperatilig to constrain said fiukes to remain substantially vertical when entering and leaving the soil. I

8. In a car for driving a plow, the combination with a frame, sprocket-wheels moiinted therein, an endless chain meshing with the sprocket-wheels, and a plurality ofanchore having blade like flakes and driven by the chain, I of endless guide-ways in the frame, a plurality of members guided in one of the guide 'ways, and a plurality of members guided in the other guide-way, each anchor being operatively connected with one ofthe former members and with one of the latter members; and means for protecting the chain from soil thrown up by, and falling ofi' the anchprs, said members and guide Ways cooperating to constrain said flukes to remain substantially vertical when entering and leaving the soil. 4

9. In a car for driving a plow, the combination with a frame, spri'icketswheels mounted therein, an endless chain meshing with,

BEST AVAILABLE COP I the sprocket-wheels, and a plurality of an .chors having blade like flukes and driven by each front axle, and guided in one pair of guide-ways, and rollers carried by each rear axle and guided in the other pair of guideways, one of the pair of guide-ways having portions thereof constituting guards for the members guided thereby and for the chain, said rollers and guide ways cooperating to constrain said tlukes to remain substantially vertical when entering and leaving the soil.

' 10; In a car for driving a plow, the combination with a frame, sprocket-wheels mounted therein, an endless chain meshing with the sprocket-wheels, and a plurality of anchors having blade like fiukes and driven by the chain, of endless guide-ways in the frame, a plurality of members guided in one of the guideways, and a plurality of members guided in the other guide-way, each anchor being 'operiitively connected with one of the former members and with one of the latter members; and means movable with the anchors for protecting the chain from soil thrown up by, and falling off the anchors, said members and guide ways cooperating to-"constrain said flakes toremain substantially vertical when entering and leaving the soil. 11. In a car for driving a plow, the combination of a frame, sprocket-wheels mount ed therein, two pairs of endless guide-ways in the frame, a plurality of members guided. in one pair of guide-ways, a plurality of members guided in the other pair of guide ways, anchors having blade like fiukes and carried by said members, and chains meshiii'g with said sprocket-wheels, each anchor having a constriction in the shank thereof, and plates carried by one pair of guide-ways extending into the constrictions in the anerating to constrain said flakes to remain substantially vertical when entering and leaving the soil.

12. In a car for driving a plow, the combination of a frame, sprocket-wheels mounted therein, two pairs of endless guide-ways in the frame, a'plurality of members guided in one pair of guide-ways, a'plurality, of members guided in the other pair of guide-ways,

there, saidmembere and guide ways coopanchors having blade like flukes and carried by said members, and chains meshing with said sprockebwheels, each anchor having a constriction in the shank thereof, an plates carried by one pair of guide-ways extending into the constrictions in the anchors, and a 126 band carried by the anchors for closin the gap between the said plates and the a-nc ore, said members and guide ways cooperatingto' constrain said flakes to remain substantially vertical when entering and leaving the soil. .130

13. In a car for driv' a plow the combination of a frame; en ess guideways on said frame; a pluralit of roller members ada ted to move in sai guideways and each held against substantial transverse play ina vertical plane therein; connected to members and each comprising a blade like fluke and an arm angularly disposed to the plane of the fluke; a roller member on said arm and another endless guide adapted to receive said member and hold it against substantial transverse play therein,- said uide being shaped in such a way as to hold said flukes in substantially vertical position when approaching and leaving their lowermost positions.

14. In a car for drivin a plow, the combinat16n of a frame; en less guideways on said frame; a plurality of members adapted to move in said guideways and each held against substantial transverse play ina vertical lane therein; anchors pivotally connected to members and each comprising a blade like fluke and an'arm ahgularly disposed to the plane of the fluke; a member on said arm and another endless guide adapted to receive said member and hold it against substantial transverse play therein, said guide being shaped in such a way as to hold said fiukes in substantially vertical position when approaching and leaving their lowermost positions.

15. In a tractor, the combination, withthe frame of the' tractor, of'driving flukes adapted to move into and out of the ground and to move horizontally relatively to the tractor; and means for constraining said flukes to remain vertical the whole time that they are in the ground or partially in the ground and during all vertical movement either up or down while they are in the' ground. I

16. In a tractor, the comb nation, with the frame of the tractor, of driving flakes adapted to move into and out of the ground and to move horizontally relatively to the tracanchors' pivotally" 'tant during their contact with the tor; and means for constraining said flakes to remain vertical the whole time that they are in the ground or partially in the ground and during all vertical movement either 11 or down while they are in the ground, and' to constrain said flukes to remain equidisand to avoid compression of the soil t erebetween.

17. A tractor comprising anchor heads each having an anchor fluke and a front and a rear axle; separate closed guide we. 8 for each axle, guiding the respective axes on both sidesovhereby the, anchor flukes' are locked in both directions; endless chains for propelling the anchor heads; said guide ways being so curved that the points of the respective anchor flukes are substantially equidistant during their contact with the ground, to avoid compression of the soil between the flukes.

18. A tractor com rising a pluralit of anchor heads each aying flukes an an arm; endless guide ways; carriers in said guide way, carrying said heads; a roller on the end of said arm; and an additional guide way engaging said roller on both sides and havingv such a shape that the anchor flukes are constrained to engage the cally.

19. A tractor comprisin a plurality of anchor heads; endless guitfe ways; carriers in said guide ways, supporting said heads and provided with slots; means for'holding the anchor flukes substantially vertically while engaging the soil; an endless chain drive; and means carried on the drive chain and engaging in said slots for driving the carriers.

In'testimony whereof, I allix my signature in the presence of two witnesses.

CLAUS HINRICH KOHN. Witnesses:

Rononru Faroxn, Doars Kmnt.

-76 soil substantially equidistntly and verti- 

